Finding the Fourth Proportional to 852,281.92, 1,278,090.62 and 319,512.26
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Solution
The fourth proportional to 852,281.92, 1,278,090.62 and 319,512.26 is: 479,143.83
Step by Step Solution
- Step 1: Write the proportion equation
852,281.92 : 1,278,090.62 = 319,512.26 : x - Step 2: Convert to fraction form
852,281.92/1,278,090.62 = 319,512.26/x - Step 3: Cross multiply
852,281.92x = 1,278,090.62 × 319,512.26 - Step 4: Simplify right side
852,281.92x = 408,365,622,481.00 - Step 5: Solve for x
x = 408,365,622,481.00/852,281.92 - Step 6: Final answer
x = 479,143.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.